At the X Developers Conference there was a discussion of the issues around
framebuffer and DRI. Theodore Ts'o suggested that I write it up and post it for
discussion. I'm going to try and list all of the issues I've heard from all
sides so some of the proposed solutions are in conflict. The goal of this list
is to provide direction for a topic discussion at the Ottawa Kernel Summit.

The top item is that accessing the video hardware is a free for all. There are
two device drivers, FB and DRI, plus numerous user space apps, like X and
SVGlib, all trying to control the hardware. The result of this is that it is
easy to lock up your machine when switching between the different usages. X does
particularly nasty things to the hardware from user space without informing the
kernel.

First is a little background that should have been in my original post:
http://thunker.thunk.org/pipermail/ksummit-2004-discuss/2004-May/000399.html

Next is the orginal post:
http://thunker.thunk.org/pipermail/ksummit-2004-discuss/2004-May/000379.html

The reply thread on the kernel summit list is here:
http://thunker.thunk.org/pipermail/ksummit-2004-discuss/2004-May/thread.html

Some talk about doing a better video memory manager and kgi is here:
http://marc.theaimsgroup.com/?l=dri-devel&r=1&b=200405&w=2

A major topic that I missed in the original list was how to handle BSD. DRM is
under the BSD license and FB is GPL. If these two code bases are merged, what
are we going to do about BSD? I don't know the appropriate BSD lists to post
this to so please forward as necessary.

Another topic that I missed was, why did kgi fail and what can we do to avoid
repeating the same path this time around.

After the flames from this settle down I'll try to write a document summarizing
the conclusions reached, if any. The best possible outcome would be a design
document for review at Kernel Summit.

=====
Jon Smirl
[EMAIL PROTECTED]


        
                
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